BACKGROUND This longitudinal study aims to examine the relationships between the perception of parental style, hope, self-esteem and Eysenck's psychoticism dimension throughout the span of four years. METHODS The sample was composed of 884 students from the Wollongong Youth Study, which commenced when students entered high school. During the course of the 4 years of the study, each participan...

INTRODUCTION Carbon dioxide clearance can be improved by reducing respiratory dead space or by increasing the clearance of carbon-dioxide-laden expiratory gas from the dead space. Aspiration of dead space (ASPIDS) improves carbon dioxide clearance by suctioning out (during expiration) the carbon-dioxide-rich expiratory gas while replacing the suctioned-out gas with oxygenated gas. We hypothesiz...

The oprF gene, expressing Pseudomonas aeruginosa major outer membrane protein OprF, was subjected to semi-random linker mutagenesis by insertion of a 1.3 kb Hincll kanamycin-resistance fragment from plasmid pUC4KAPA into multiple blunt-ended restriction sites in the oprF gene. The kanamycin-resistance gene was then removed by Pstl digestion, which left a 12 nucleotide pair linker residue. Nine ...

Understanding why human immunodeficiency virus (HIV) preferentially infects some CD4(+) CD45RO(+) memory T cells has implications for antiviral immunity and pathogenesis. We report that differential expression of a novel secreted factor, ps20, previously implicated in tissue remodeling, may underlie why some CD4 T cells are preferentially targeted. We show that (i) there is a significant positi...

Chick muscle cultures infected with wild-type Rous sarcoma virus form myotubes, but these myotubes vacuolate and by day 6 most have degenerated, leaving only large numbers of transformed mononucleated, replicating cells. Muscle cultures infected with a temperature-sensitive mutant (TS) at permissive temperatures behave as cells infected with wild-type Rous sarcoma virus. TS-infected cells reare...

AIM Adolescents in Vietnam have a low level of sexual activity, but this may increase with urbanisation and economic development. The aim of this analysis is to understand trends in correlates of permissive attitudes towards premarital sex among Vietnamese adolescents using an ecological framework. METHODS Data from the Survey Assessment of Vietnamese Youth from 2003 (n = 7584) and 2009 (n = ...